KR20110057404A - Sinking pontoon for a construction of a submarine tunnel and a contructuion method of a submarine tunnel using the same - Google Patents

Abstract

PURPOSE: A submerged pontoon for submerged tunnel construction and a construction method of a submerged tunnel using the same are provided to shorten the time required for construction progress and to cut down the cost of construction by reducing the waiting time for correcting the position of a submerged enclosure for synchronization of winches installed to a primary submerged pontoon and secondary submerged pontoons. CONSTITUTION: A submerged pontoon for submerged tunnel construction comprises a group of a primary submerged pontoon and secondary submerged pontoons. The primary submerged pontoon and the secondary submerged pontoons include four mooring winches, two contraction winches, two suspension winches, one longitudinal winch and five power packs, wherein winch auto controllers(310,320) are installed to the primary submerged pontoon and the secondary submerged pontoons respectively, wireless transmitting and receiving devices(313,323) are connected to each winch auto controller, and a 9-set joystick(321) for operating each winch of the primary submerged pontoon and a 9-set joystick(322) for operating each winch of the secondary submerged pontoon are connected to the winch auto controllers of the secondary submerged pontoons respectively.

Description

Sinking pontoon for a construction of a submarine tunnel and a contructuion method of a submarine tunnel using the same}

The present invention relates to a submerged pontoon for submerged tunnel construction and a method for constructing a submerged tunnel using the same, more specifically, comprising a plurality of winches and a submerged pontoon having a winch dedicated controller electrically connected thereto. It relates to a set of immersion pontoons and the construction method of the immersion tunnel using the same.

The immersion tunnel is a kind of transportation path that is completed by connecting the immersion enclosure manufactured on the ground to the flat bottom of the seabed and connecting it with the immersion tunnel which is already submerged.It is also used in the construction site of Geoga Bridge in Busan and Geoje Island. The submarine tunnel is being applied.

The immersion tunnel is generally constructed by towing a certain size of the immersion enclosures manufactured on land to the upper surface of the installation target and then descending them using a winch, such as a barge, to combine with the already installed immersion enclosures. However, in the related art, winches provided on barges disposed at both end sides of the immersion enclosure are connected to fixing anchors installed on the sea bottom through sheave blocks and fairleads installed on the immersion enclosure. The workers who boarded the wires of the winch on each barge were slowly released manually to perform the settlement of the settlement. Therefore, when the person in charge of the main barge commands the individual operator of each winch installed on each barge to operate the specific winch by using radio or hand signal, each worker manually releases or pulls the winch by a certain amount. There was no choice but to settle down the settlement. In the conventional manual method, since the configuration for the operation of the winch is composed of a spherical needle gauge and a simple button, the sedimentation work is performed in a manner that is purely dependent on the driver's operation ability, and as a result, the position of the enclosure of the sedimentation enclosure There was a problem that the settlement time of the enclosure is very long because the calibration time is delayed and the waiting time for the correction of the enclosure is increased. The prolongation of the time required for the settling process had problems such as lowering the overall efficiency of the work by increasing the construction cost and reducing the concentration of workers.

The present invention has been made in view of the above-described conventional problems, and in the present invention, winch controllers are provided in the main immersion pontoons and the secondary immersion pontoons, respectively, in which the winches of various types necessary for the immersion of the immersion enclosure are disposed in place. By operating winches, driving joysticks, and wireless transceivers, the winches of any one immersion pontoon are synchronized by wireless transmission and reception so that the corresponding winches of the other immersion pontoons can be synchronized to automatically settle the settlement container. To shorten the time of sedimentation work and to increase the efficiency of sedimentation work.

In particular, according to the present invention, it is possible to efficiently operate the individual winches having the respective characteristics disposed in the main and secondary submother pontoons, and to remotely control each unit of the main and secondary submother pontoons individually or unitarily Since the remote control can be performed simultaneously or at the same time by collectively, the efficiency of the process can be improved, and the construction quality can be improved and the construction cost can be reduced due to the improvement of the work efficiency.

According to an aspect of the present invention, by solving the above-described technical problem, the main immersion comprising a mooring winch, a width winch, a main winch, a longitudinal winch and a winch dedicated controller electrically connected to the respective winches Consists of a pair of pontoons and secondary submerged pontoons, each of the winch dedicated controller is connected to a radio transceiver, and each of the winch of the main submerged pontoons and secondary submerged pontoons to the main controller with at least one winch dedicated controller It is provided with a soaking pontoon for immersion tunnel construction, characterized in that the joysticks for controlling the connection.

Here, the mooring winch is composed of first to fourth mooring winch, the widthwise winch is composed of first to second widthwise winch, the main winch is the first to second main winch It may be made of.

According to another aspect of the present invention, in the method of constructing the submerged tunnel by submerging the immersion enclosure using the immersion pontoon of claim 1, (a) the upper side of both ends of the immersion pontoon of claim 1 (B) fixing the wires of each winch provided on the main and secondary soak pontoons to the anchor anchors installed on the seabed ground in order to fix the immersion enclosures at the sedimentation target point; Inflowing seawater into the ballast tank provided inside the immersion enclosure to secure the downward force of the immersion enclosure; and (d) by operating each of the winch by operating the joystick connected to the main controller to lower the immersion enclosure Provided is a method for constructing a immersion tunnel, comprising the step of coupling to the immersion enclosure.

Here, the wires of each of the widthwise winch of the main immersion pontoon and the secondary immersion pontoon is connected to a working anchor provided on the upper surface of the immersion enclosure, the longitudinal winch of the main immersion pontoon is provided on the upper surface of the pre-installed acupuncture enclosure It is connected to the working anchor, the longitudinal winch of the submerged pontoon can be connected to a fixing anchor provided on the sea floor.

According to the present invention, the standby time for the position calibration of the immersion enclosure for the synchronization operation of the winches installed in the main immersion pontoon and the secondary immersion pontoon is drastically reduced, the process time is significantly shortened, thereby reducing the construction cost and work efficiency There is a much improved effect than the conventional.

In addition, there is an advantage that the operation of lowering the immersion enclosure by the winch of the immersion pontoon is much easier and faster to prevent the collision or accident that may occur during the sedimentation operation in advance.

Submerged tunnel is a submarine tunnel that is completed by towing submerged ship, which is a kind of concrete structure made on land, from the sea to the target point and submerged and settled on the seabed terrain. It is applied.

In the case of the immersion enclosure being manufactured and constructed in the section of Geoga Bridge, for example, the immersion enclosure is 26.5m (W) x9.97m (H) x180m (L), which is designed as a two-way one-way road. These submerged enclosures are concrete structures, which are usually constructed in a dock on land, filled with seawater in a dock, suspended in a dock, then dragged to a tugboat to a designated location, and then submerged.

The following is a description of the main processes for correctly seating construction at the target point where the immersion enclosure is to be installed. First, the ship is launched from the onshore dock and the ship is towed to a designated mooring point by a tugboat to moor the ship. Next, as a preliminary preparation work before the immersion process of the immersion enclosure anchored at sea, the necessary installations are installed inside and outside the immersion enclosure, and the immersion equipment is mounted on the immersion enclosure. After that, the ship is towed to the target point of settlement and the ship settlement is submerged. After immersing and connecting the immersion enclosure to the immersion enclosure of the seabed already installed, carry out protection work to protect the immersion enclosure.

Shaft construction, trench excavation and tunnel foundation construction are performed as a pre-sedimentation process of the immersion enclosure, but detailed description thereof is omitted since it is a process that deviates from the gist of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the technical spirit of the present invention. 1 is a process diagram of the anchoring state of the immersion enclosure according to the present invention, Figure 2 is a plan view showing an anchor point of the anchoring of Figure 1 by way of example.

1 and 2, after towing the immersion enclosure 10 from the mooring area to the upper surface of the immersion target point, an anchoring operation for fixing the immersion enclosure 10 is performed. The anchoring operation is performed using various winches of the main immersion pontoon 100 and the secondary immersion pontoon 200 located on the upper side of both ends of the immersion enclosure 10. In FIG. 1, reference numeral 20 denotes a soaking enclosure already installed on the sea floor.

8 and 9 are plan views showing a schematic configuration of the main champon pontoon and the secondary submerged pontoon according to the present invention, respectively. The main immersion pontoon (100, Primary pontoon) and the secondary immersion pontoon (200, Secondary pontoon) has a similar configuration to each other, in the case of the main immersion pontoon 100, four first to fourth mooring winch ( mooring winch (111,112,113,114), two first and second contraction winches (121,122), two first and second main winches (131,132), one longitudinal winch (141) And five first to fifth power packs (151,152,153,154,155). Similarly, the submerged pontoon 200 also has four first to fourth mooring winches 211, 212, 213 and 214, two first and second width winches 221 and 222, two first and second main winches 231 and 232, and Two longitudinal winches 241 and five first to fifth power packs 251, 252, 253, 254, 255.

Each of the power packs 151 to 155 and 251 to 255 includes a generator and a coolant pump, respectively, and is used as a power source for providing power to drive each winch.

As shown in FIG. 2, the anchoring operation is performed using winches on the primary and secondary submerged pontoons 200. In other words, based on the anchoring ground, etc. by the divers first to the underwater ground in the front, rear, left and right directions of the new immersion enclosure 10 to be fixed to the anchor for fixing already installed as shown by lowering the wire to the seabed with a winch. . In the drawings, the first to fourth mooring winches 111 to 114: MP1 to MP4, the first and second widthwise winches 121 to 122: CP1 to CP2, and the submerged portion of the main immersion pontoon 100. An anchor point AP1 using the first to fourth mooring winches 211 to 214: MS1 to MS4 of the pontoon 200 and the first and second widthwise winches 221 to 222: CS1 to CS2. ~ AP8) is set. The wire of the longitudinal winch 141 LP of the main immersion pontoon 100 is fixed to a working anchor on the upper part of the immersion enclosure 20, and the wire of the longitudinal winch 241: LS of the secondary immersion pontoon 200 is fixed. Is fixed to a fixing anchor provided on the sea bottom to set the ninth anchor point AP9. In this way, the preparation for submerging and lowering the immersion enclosure 10 is completed.

3 to 7 is a step-by-step process diagram of the sedimentation process of the settlement container according to the present invention. In the step of FIG. 3, the seawater is filled in a ballast tank (not shown) installed inside the immersion enclosure 10 as a preliminary step of the immersion process for coupling the new immersion enclosure 10 to the previously installed immersion enclosure 20. To secure the operation.

At this time, the wires of the first and second main winch (131,132) of the main immersion pontoon 100 and the first and second main winch (231,232) of the secondary immersion pontoon 200 are located directly below It is connected to the working anchor on the top of the immersion enclosure to adjust the horizontal balance of the immersion enclosure. The wire anchor 120a, 220a of each of the widthwise winches 121, 122, 221, and 222 of the main immersion pontoon 100 and the sub immersion pontoon 200 passes through the central portion of the immersion pontoon 100,200, and has a working anchor on the upper part of the submerged pontoon 100 directly below. Is connected to. Wire 140a of the longitudinal winch 141 of the main immersion pontoon 100 is connected to the working anchor of the upper immersion enclosure 20, the wire of the longitudinal winch 241 of the secondary immersion pontoon 200 ( 240a is connected to the rear anchor point AP9 of the newly settled enclosure 10.

4 and 5, after the seawater is introduced into the ballast tank inside the immersion enclosure 10 to secure the unloading force, the immersion enclosure 10 is lowered when the widthwise winches 121, 122, 221 and 222 are released. Lowering the immersion enclosure 10 to the height of the immersion enclosure 20 already installed, and then precisely descending while adjusting the longitudinal winches 141 and 241 appropriately, the coupling surface of the immersion enclosure 20 in which the new immersion enclosure 10 is installed. To be close to. That is, while slowly releasing the longitudinal winch 241 of the secondary submerged pontoon 200 while pulling the longitudinal winch 141 of the main immersion pontoon 100, the preservation body is already installed on the coupling surface of the new immersion enclosure (10) It can be connected to the mating surface of (20).

FIG. 6 shows a new submerged enclosure 10 coupled to a pre-installed submerged enclosure 20, and sealing means of rubber or resin of an elastic material 11 for maintaining airtightness from seawater at the joint portions of both submerged enclosures. , 21 can be seen.

FIG. 7 shows the formation of the protective layer 30 to protect the outer wall side of the immersion enclosure 10 after the newly immersed enclosure 10 is coupled to the previously provided immersion enclosure 20.

10 is a block diagram schematically showing the configuration of the electronic control circuit of the main immersion pontoon and the secondary immersion pontoon according to the present invention. The main immersion pontoon 100 and the secondary immersion pontoon 200 are provided with winch auto controllers 310 and 320, respectively, and each winch dedicated controller has nine sets of winch controls for ON / OFF of each winch. A winch control valve (314), nine sets of load cells (315), three sets of wire length detectors (316) and nine sets of brake solenoid valves (317) Connected. Each winch dedicated controller 320 of the main immersion pontoon 100 and the secondary immersion pontoon 200 is connected to a wireless transceiver (313,323), respectively. In addition, the winch-only controller 320 of the secondary submerged pontoon 200 controls each winch of the nine sets of joysticks 321 and the secondary submerged pontoon 200 for controlling each winch of the main submerged pontoon 100. Nine sets of joysticks 322 are each connected. A programmable logic controller (PLC) may be used as the winch dedicated controller.

According to the winch control system according to the present invention having such a configuration, when the operator controls each winch of the submerged pontoon 200 by using the joystick 322 in the submerged pontoon 200, information on this is submerged. The radio transceiver 323 of the pontoon 200 is transmitted to the radio transceiver 313 of the main immersion pontoon 100 and then to the winch dedicated controller 310. Therefore, each winch of the main immersion pontoon 100 can be driven to correspond to each winch of the secondary immersion pontoon (200). That is, the corresponding winches of the main immersion pontoon 100 and the secondary immersion pontoon 200 are synchronized with each other to automatically lower the immersion enclosure 10 while balancing. For example, when the operator of the cockpit of the submerged pontoon 200 releases and lowers the wires of the widthwise winches 221 and 222 by operating a joystick, the corresponding widthwise winches 121 and 122 of the main immersion pontoon 100 are also the same. Loosen the wire to the length is to lower the immersion enclosure (10). Therefore, when one worker winds or unwinds the winch wire using the joystick 322, the corresponding winch of the main immersion pontoon 100 or the secondary immersion pontoon 200 automatically performs a separate adjustment work or It is very convenient because it does not require any additional personnel.

In the above embodiment, the winch-only controller 320 of the submerged pontoon 200 is shown as a main controller, but the main controller may be disposed on the main immersion pontoon 100. In addition, the winch dedicated controller 320 of the submerged pontoon 200 is provided with a joystick 321 for each winch control of the main immersion pontoon 100, the main immersion using the joystick 321 for the main immersion pontoon 100 Each winch of the pontoon 100 may be wirelessly controlled. Of course, according to the driving of the winch for the main immersion pontoon 100, the respective winches for the corresponding submerged pontoon 200 is also automatically driven.

In the present invention, the sub-controller automatically controls each winch according to the signal of the main controller, but it is not excluded to manually and individually control each winch of the main and secondary submerged pontoons 100 and 200. .

Figure 11 shows an example of the report screen of the operating state manifested by the winch automatic control program according to the present invention. As shown, according to the winch control system of the present invention at a glance the state of each winch on the main immersion pontoon (100) and the secondary immersion pontoon (200) through the screen displayed on the monitor of the computer connected to each winch dedicated controller It is very convenient because it can be understood.

1 is a process diagram of the state of completing the anchor work of the settlement housing according to the present invention.

Figure 2 is a plan view showing an anchor point of the anchoring of Figure 1 by way of example.

3 to 7 is a step-by-step process diagram of the sedimentation process of the settlement container according to the present invention.

8 and 9 are a plan view showing a schematic configuration of the main champon pontoon and the secondary submerged pontoon according to the present invention, respectively.

Figure 10 is a schematic diagram showing the configuration of the electronic control circuit of the main immersion pontoons and secondary immersion pontoons according to the present invention.

Figure 11 is an example of the report screen of the operating state manifested by the winch automatic control program according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: new seam enclosure 20: pre-mounted seam enclosure

100: the main wicked pontoon

111 ~ 114, 211 ~ 214: mooring winch 121 ~ 122,221 ~ 222: widthwise winch

131 ~ 132, 231 ~ 232: Main winch 141,241: Longitudinal winch

151 ~ 155,251 ~ 255: Power pack 310,320: Winch-only controller 313,323: Wireless transceiver 314,324: Winch control valve 315,325: Load cell 316,326: Wire length detector

317,327: Winch Brake Solenoid Valve

321,322: joystick

Claims (4)

A mooring winch, a width winch, a main winch, a longitudinal winch, and a pair of main submerged pontoons and secondary submerged pontoons each having a dedicated winch controller electrically connected to the respective winches, A wireless transceiver is connected to each winch dedicated controller, and at least one winch dedicated controller is used as a main controller, and the main controller is connected to joysticks for controlling each winch of the main and secondary submother pontoons. Chimney pontoon for construction of immersion tunnel. The method of claim 1, The mooring winch consists of first to fourth mooring winches, the widthwise winch consists of first to second widthwise winches, and the main winch consists of first to second main winches. Immersion pontoons for immersion tunnel construction, characterized in that. In the method of constructing the submerged tunnel of the seabed by submerging the submerged enclosure using the immersion pontoon of claim 1, (a) placing the immersion pontoons of claim 1 on upper sides of both ends of the immersion enclosure; (b) fixing the wires of the winches provided on the primary and secondary submerged pontoons to fixing anchors installed on the sea floor to fix the immersion enclosures at the sedimentation target point; (c) inflowing seawater into a ballast tank provided inside the immersion enclosure to secure the downward force of the immersion enclosure; And (d) driving the respective winches by operating a joystick connected to the main controller to lower the immersion enclosure and to couple the installed immersion enclosure; Construction method of the immersion tunnel, characterized in that comprises a. The method of claim 3, wherein Wires of each of the widthwise winch of the main immersion pontoon and the secondary immersion pontoon is connected to a working anchor provided on the upper surface of the immersion enclosure, the longitudinal winch of the main immersion pontoon working anchor provided on the upper surface of the pre-installed immersion enclosure Is connected to, the construction method of the submerged tunnel, characterized in that the longitudinal winch of the submerged pontoon is connected to a fixing anchor provided on the sea floor.

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